Written by
Adrian Soto Appliance Repair Content SpecialistPublished September 5, 2026Updated October 20, 2026
Error codeHC4
ApplianceDishwasher
Quick answer
Samsung dishwasher HC4: drying fails or ends early with unusually hot air at the door vent.
Model compatibility: Samsung reuses codes across series and model years, so HC4 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Wash may complete but drying fails or ends early, with unusually hot air at the door vent.
HC4 can appear straight away on a Samsung dishwasher. The wash may complete, but drying fails or stops early. There is unusually hot air at the door vent just before the stop, and the unit beeps near the end.
What to check
Make sure nothing covers the exterior vent and that dishes inside the tub are not pressed against the inner vent outlet, so hot air can move freely.
Related
For a similar drying failure see HC2. The general high temperature entry is HC, and FC covers a drying stop with weak airflow.
Samsung dishwasher service in Los Angeles
If the code keeps coming back, our team can look at your Samsung dishwasher repair request in Los Angeles. Call (310) 896-4231 and have the code, the model number and what you already tried ready.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
